是否可以将 http.ServeHttp 包装在 go 中以使用 alexedwardsscsv2 添加会话

As noted in Peter's answer, the LoadAndSave() method from alexedwards/scs/v2 expects an http.Handler interface as an argument.
Since your HttpServer type has a ServeHTTP method with the correct signature, it satisfies the http.Handler interface, and you can pass an instance of your HttpServer type to the LoadAndSave method.

但是您的Run()方法应该有一个sessionManager *scs.SessionManager作为参数:

func (s *HttpServer) Run(sessionManager *scs.SessionManager) {
    address := "127.0.0.1:8080"
    
    // Wrap your HttpServer with the LoadAndSave middleware.
    handlerWithSessions := sessionManager.LoadAndSave(s)
    
    ...
}

That means creating and configuring the SessionManager outside this method (with scs.New()), and passing it in when you call Run.
There, you can set sessionManager as a field in the HttpServer struct.
That will allow your (s *HttpServer) ServeHTTP(writer http.ResponseWriter, r *http.Request) to retrieve it.

例如:

package main

import (
    "github.com/alexedwards/scs/v2"
    "log"
    "net/http"
    "time"
)

type HttpServer struct {
    getRoutes     map[string]http.HandlerFunc // pattern => handler
    postRoutes    map[string]http.HandlerFunc
    server        http.Server
    sessionManager *scs.SessionManager
}

func (s *HttpServer) Run(sessionManager *scs.SessionManager) {
    address := "127.0.0.1:8080"
    
    // Set the sessionManager field
    s.sessionManager = sessionManager
    
    // Wrap your HttpServer with the LoadAndSave middleware.
    handlerWithSessions := sessionManager.LoadAndSave(s)
    
    s.server = http.Server{
        Addr:           address,
        Handler:        handlerWithSessions, // Use the wrapped handler
        ReadTimeout:    10 * time.Second,
        WriteTimeout:   10 * time.Second,
        MaxHeaderBytes: 1 << 20,
    }
    
    log.Fatal(s.server.ListenAndServe())
}

func (s *HttpServer) ServeHTTP(writer http.ResponseWriter, r *http.Request) {
    // Access the session via the sessionManager field
    session := s.sessionManager.Load(r)
    
    // Use the session, e.g. session.Put, session.Get, etc.
    // ...
}

func main() {
    // Create and configure the session manager
    sessionManager := scs.New()
    sessionManager.Lifetime = 24 * time.Hour
    
    // Create your custom HttpServer
    httpServer := &HttpServer{
        getRoutes:  make(map[string]http.HandlerFunc),
        postRoutes: make(map[string]http.HandlerFunc),
    }
    
    // Start the server with the session manager
    httpServer.Run(sessionManager)
}